CVE-2026-52490

libtiff: libtiff: Arbitrary code execution via process_command_opts() function

Published Aug 24, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c

Analysis

AI-generated

Technical impact

An issue in libtiff permits an attacker to execute arbitrary code through the process_command_opts function used by tiffcrop. The flaw allows tailored command options to be interpreted in a way that can spawn code execution, potentially compromising the host system. The attack vector is inferred to be local or remote where an attacker can supply crafted command-line arguments to tiffcrop, though the description does not explicitly state network exposure. The primary consequence is loss of confidentiality, integrity, and availability of the affected system.

Affected Systems

The vulnerability affects installations of the libtiff library, with the specific version unspecified. Any system that uses the libtiff library and employs the tiffcrop tool is potentially vulnerable. No vendor product names or version ranges are provided.

Risk and Exploitability

The CVSS score is 9.8, and the EPSS score is < 1%, but the nature of the flaw—allowing arbitrary code execution—implies a high exploitation potential if the vulnerable library is reachable. The issue is not listed in CISA’s KEV catalog, indicating no known active exploitation at the time of reporting. Users should treat this as a critical flaw that could be exploited by a local or remote user capable of running tiffcrop with crafted options.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade libtiff to the latest stable release that includes a fix for this issue.
  • Remove or restrict execution of the tiffcrop tool to trusted users only to prevent the ability to supply malicious options.
  • When using tiffcrop, validate and sanitize all command options to avoid processing untrusted input.

Generated by OpenCVE AI on August 26, 2026 at 03:36 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Arbitrary Code Execution via tiffcrop command options in libtiff libtiff: libtiff: Arbitrary code execution via process_command_opts() function
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
Weaknesses CWE-94
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Arbitrary Code Execution via tiffcrop command options in libtiff
First Time appeared Libtiff
Libtiff libtiff
Weaknesses CWE-78
Vendors & Products Libtiff
Libtiff libtiff
Type Values Removed Values Added
Description An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c
References
Weaknesses
  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

  • CWE-94

    Improper Control of Generation of Code ('Code Injection')

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 25, 2026, 7:41 PM
Reserved
Jun 8, 2026, 12:00 AM
Status
Awaiting Analysis
Published
Aug 24, 2026, 9:17 PM
Modified
Oct 12, 2026, 9:10 PM
Severity
Important
Public date
Aug 24, 2026, 12:00 AM